GREEK · G5472
χαλκηδών
chalkēdōn — chalcedony
χαλκηδών, -όνος, ὁ chalcedony, "supposed to denote a green silicate of copper found in the mines near Chalcedon " (Swete): Rev.21:19.† (AS)
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How to read this: there is rarely one magic “true meaning” hidden behind an English word. A lexicon records a word’s semantic range. The intended meaning is narrowed by grammar, sentence, author, historical usage and context.
GREEK · G5472
chalkēdōn — chalcedony
χαλκηδών, -όνος, ὁ chalcedony, "supposed to denote a green silicate of copper found in the mines near Chalcedon " (Swete): Rev.21:19.† (AS)
1 tagged verse occurrence · see every occurrence →Mentioned only in Rev. 21:19, as one of the precious stones in the foundation of the New Jerusalem. The name of this stone is derived from Chalcedon, where it is said to have been first discovered. In modern mineralogy this is the name of an agate-like quartz of a bluish colour. Pliny so names the Indian ruby. The mineral intended in Revelation is probably the Hebrew nophekh, translated “emerald” (Ex. 28:18; 39:11; Ezek. 27:16; 28:13). It is rendered “anthrax” in the LXX., and “carbunculus” in the Vulgate. (See CARBUNCLE.)
Source: Easton’s Bible Dictionary (1897). Historical dictionary wording reflects the scholarship and language of its era.